Wilan LIBRA 5800 AP, User Manual

Page: 94 / 156

Field Installation
94 Libra 5800 Series User Guide
5. For the CPE or RD, if Up or Down tilt is required, adjust the unit accordingly such that the face of
the antenna is pointed as directly to the Access Point or the other unit in the P-P link as possible.
6. Lightly tighten the bracket bolts to hold the unit in place.
➧
Connecting the Libra
1. Insert the end of the CAT-5/Power cable into the provided weatherproofing attachment.
2. Connect the CAT-5 / Power cable to the connector located on the back panel of the Libra Unit
and screw in the weatherproofing attachment.
3. Plug the RJ-45 end of the Libra CAT-5 cable into the power inserter in the "TO RADIO" jack.
4. Connect the "TO LAN" side of the power inserter to the PC or network.
5. Locate the AC power cord for the power inserter and plug AC power cord in, and to the AC wall
socket.
➧
Configuration & Link Test
1. Connect a laptop or PDA to the RS-232 port on the Libra. (See Configuration , page 27 )
2. Configure unit to the proper center frequencies, etc if you have not done that previously (See
Quick-Start Menu , page 33 or PDA Setup Menu , page 39 ).
3. Run a "Link Test" for a minute or two (See Appendix D: Linktest and Link Statistics , page 119 ) to
verify RF link performance.
From the MAC Layer statistics screen (see
MAC Layer Statistics , page 84 ):
• The Late Poll Response number should not change
• The fade margin should be adequate for the link conditions and availability requirements.
• The uncorrected codewords and superframes figures should be zero.
From the Linktest result screen:
• LBER and BER should both be zero
• LFade Margin and Fade margin should be similar to the one calculated from link availability
requirements
4. If the link results are satisfactory, proceed to Step 6 below.
If the link is unsatisfactory first turn the antenna in different directions to benefit from beneficial
multi-paths. If still unsuccessful look for another antenna location with better line-of-sight until you
find a location that is satisfactory.
5. Refer to the troubleshooting guidelines, Troubleshooting , page 97, if problems persist.
6. Adjust antenna position to achieve the best Link Test performance.
7. When Link test performance is satisfactory, tighten mounting hardware.
➧
Test network connectivity
The next step is to verify that a computer attached to the Libra can communicate with a computer
on the other side of the wireless link.
1. Call up the Network Operations Center (NOC).
2. “Ping” the NOC from the CPE.